How much cheaper is charging at home vs. a Supercharger in Ohio?

Typically 3–4× cheaper per mile. At a ~15.6¢/kWh Ohio home rate, a Model Y costs about 4¢/mi. A Supercharger session in Ohio runs roughly 36–48¢/kWh depending on time of day, putting you closer to 12–15¢/mi. Use the calculator above for your exact car and rate.

When should I charge to get Time-of-Use savings?

Most Ohio TOU plans price off-peak between roughly 9pm–7am weekdays and all weekend. Schedule charging in the Tesla app (Charging → Scheduled Departure) so the car starts at the off-peak window and finishes before peak. The catch: TOU also raises your peak rate, so it only saves money if you can shift dryer, AC, and oven use off-peak too. See the Utilities page for plan details by provider.

Is a NEMA 14-50 outlet enough, or do I need a Wall Connector?

A NEMA 14-50 on a 50A circuit gives ~32A / ~7.7 kW — about 30 mi/hr of charge. That covers 99% of Ohio owners' daily driving. A Tesla Wall Connector on a 60A circuit pushes 11.5 kW / ~44 mi/hr and supports load sharing if you add a second car later. Either is fine; the 14-50 is cheaper to install.

What does it cost to install a Level 2 home charger in Ohio?

Typical range is $400–$1,500 for a licensed electrician, depending on panel distance, panel capacity, permit, and whether you need a panel upgrade. A simple NEMA 14-50 install near the panel can be $400–$700. Long runs, exterior conduit, or 200A panel upgrades push it higher. Always get a permit — it protects resale and your insurance.

Should I charge to 100% every night?

No — set the daily limit to 80% for LFP-pack Standard Range cars set it to 100% once a week per Tesla's guidance). Charging past 80% is slower and adds long-term wear on the high-voltage pack. Charge to 100% only before a road trip and leave shortly after.

Does cold Ohio weather really hurt charging?

Yes. A cold-soaked battery accepts power slowly until it warms up, and cabin heat pulls from the pack while you charge. Precondition before fast-charging (the car heats the pack on the way to the Supercharger) and precondition while plugged in at home on cold mornings so the wall, not the battery, supplies the heat. Expect 20–30% higher Wh/mi in deep winter.

How much cheaper is charging at home vs. a Supercharger in Ohio?

Typically 3–4× cheaper per mile. At a ~15.6¢/kWh Ohio home rate, a Model Y costs about 4¢/mi. A Supercharger session in Ohio runs roughly 36–48¢/kWh depending on time of day, putting you closer to 12–15¢/mi. Use the calculator above for your exact car and rate.

When should I charge to get Time-of-Use savings?

Most Ohio TOU plans price off-peak between roughly 9pm–7am weekdays and all weekend. Schedule charging in the Tesla app (Charging → Scheduled Departure) so the car starts at the off-peak window and finishes before peak. The catch: TOU also raises your peak rate, so it only saves money if you can shift dryer, AC, and oven use off-peak too. See the Utilities page for plan details by provider.

Is a NEMA 14-50 outlet enough, or do I need a Wall Connector?

A NEMA 14-50 on a 50A circuit gives ~32A / ~7.7 kW — about 30 mi/hr of charge. That covers 99% of Ohio owners' daily driving. A Tesla Wall Connector on a 60A circuit pushes 11.5 kW / ~44 mi/hr and supports load sharing if you add a second car later. Either is fine; the 14-50 is cheaper to install.

What does it cost to install a Level 2 home charger in Ohio?

Typical range is $400–$1,500 for a licensed electrician, depending on panel distance, panel capacity, permit, and whether you need a panel upgrade. A simple NEMA 14-50 install near the panel can be $400–$700. Long runs, exterior conduit, or 200A panel upgrades push it higher. Always get a permit — it protects resale and your insurance.

Should I charge to 100% every night?

No — set the daily limit to 80% for LFP-pack Standard Range cars set it to 100% once a week per Tesla's guidance). Charging past 80% is slower and adds long-term wear on the high-voltage pack. Charge to 100% only before a road trip and leave shortly after.

Does cold Ohio weather really hurt charging?

Yes. A cold-soaked battery accepts power slowly until it warms up, and cabin heat pulls from the pack while you charge. Precondition before fast-charging (the car heats the pack on the way to the Supercharger) and precondition while plugged in at home on cold mornings so the wall, not the battery, supplies the heat. Expect 20–30% higher Wh/mi in deep winter.

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Resource

Home Charging Cost Calculator

Estimate what it costs to charge your Tesla at home in Ohio. Defaults use typical AEP, Duke, FirstEnergy, and AES rates — swap in your actual all-in delivered rate from your latest bill for the most accurate number.

Your Ohio utility

Electricity rate ($/kWh)0.156

Tesla model

Battery size is an average usable pack size for that configuration; your exact pack may vary. Final cost is an estimation.

Battery size (kWh, usable)79

Efficiency (Wh/mi)281 Wh/mi

Start %20%

End %80%

Gas comparison

Gas price ($/gal)$3.25

Gas car MPG28 mpg

Estimated cost

Cost: 20% → 80%

$8.13

52.1 kWh from the wall · ≈ 169 mi added

Same miles in a gas car

$19.58

6.02 gallons of gas @ $3.25/gal · 28 mpg

You save $11.45 on this fill-up

Full 0 → 100% charge

$13.56

Including ~10% AC losses

Cost per mile

4.82 ¢ / mi

Range ≈ 281 mi · 3.56 mi/kWh

Estimate only. Real-world cost depends on your supplier rate, time-of-use plan, weather, tire choice, and driving style. Many Ohio utilities offer EV-specific overnight rates that meaningfully lower these numbers.

What is Wh/mi?

Watt-hours per mile (Wh/mi) is how Tesla's dashboard and trip computer reports efficiency — the energy your car pulls from the battery to drive one mile. Lower is better. A Model 3 Long Range RWD cruising at 65°F on stock aero wheels can sip around 230 Wh/mi; a Cybertruck Cyberbeast on 35″ tires in winter can drink 550+ Wh/mi.

To convert: mi/kWh = 1000 ÷ Wh/mi. So 250 Wh/mi ≈ 4.0 mi/kWh. The presets above use Tesla's published EPA combined ratings; expect 10–25% worse in Ohio winters (cold battery + cabin heat + winter tires) and 5–15% better on mild-weather highway commutes at steady speeds.

Tip: in your Tesla, tap Energy → Consumption to see your real 5/15/30 mile average. Plug that number into the slider above for a personalized cost.

Time-of-use rates in Ohio

Time-of-use (TOU) pricing charges you less for electricity used overnight and on weekends, and more during weekday afternoon/evening peak hours. For most Tesla owners, scheduling charging to off-peak windows can drop your effective rate by 30–60% — often the single biggest lever on home charging cost.

AEP Ohio

Residential TOU optional rider. Off-peak typically overnight (e.g. 9 pm–7 am) and all day weekends/holidays. Check current schedule at aepohio.com.

Duke Energy Ohio

TOU-D residential rider with on/off-peak windows. Off-peak overnight and weekends. See current tariffs at duke-energy.com.

FirstEnergy (Ohio Edison, CEI, Toledo Edison)

TOU pilot programs available in some territories. Most savings come from picking a competitive overnight supplier on energychoice.ohio.gov.

AES Ohio (Dayton)

Residential TOU rider with overnight off-peak. Confirm enrollment and current windows at aes-ohio.com.

Rates and windows change. Always confirm with your utility before enrolling — TOU plans can backfire if your household runs heavy AC, dryers, or ovens during peak hours.

Tips to lower your charging cost

Schedule charging in the Tesla app — set Charging → Scheduled Departure or Scheduled Charging to start during your off-peak window.
Shop your supplier on energychoice.ohio.gov — generation is deregulated in Ohio, and locking a low fixed rate can save more than any TOU plan.
Charge to 80% for daily driving. Faster, less wear on the pack, and the last 20% is the slowest and least efficient.
Precondition while plugged in on cold mornings — the energy comes from the wall, not your battery.
Use a Wall Connector or NEMA 14-50 (Level 2) instead of a 120V outlet. Level 2 is more efficient end-to-end and lets you fully use off-peak windows.
Track your real Wh/mi over a month and plug it into the calculator — Ohio winter driving often runs 20–30% higher than EPA.
Compare to Supercharging on road trips. Home charging in Ohio is typically 3–4× cheaper per mile than a Supercharger session.

FAQ

Home Charging Cost Calculator

What is Wh/mi?

Time-of-use rates in Ohio

Tips to lower your charging cost

Charging cost & setup FAQ

How much cheaper is charging at home vs. a Supercharger in Ohio?

When should I charge to get Time-of-Use savings?

Is a NEMA 14-50 outlet enough, or do I need a Wall Connector?

What does it cost to install a Level 2 home charger in Ohio?

Should I charge to 100% every night?

Does cold Ohio weather really hurt charging?